Abstract
The space and time extents of the particle emitting source created in collisions of particles with nuclei can be measured using a correlation femtoscopy method. In this paper we show the preliminary measurements of K ± K ± correlation functions in 600 GeV/ c Σ − , π − and 540 GeV/ c p interactions with carbon and copper nuclei. The one-dimensional correlation functions are parameterized by a Gaussian form. The dependencies of the charged kaon emitting source radii on the different h+A collisions are presented.
Highlights
Multiparticle production in high-energy collisions of particles and/or nuclei is a basic property of the strong interaction which is described by the Quantum Chromodynamics (QCD)
In this paper we report on the results of two-kaon femtoscopic analysis performed for 600 GeV/c Σ−, π− and 540 GeV/c p interactions with carbon and copper nuclei
The correlation functions were normalized such that the C(qinv) = 1 for the 0.6 < qinv < 0.8 GeV/c region, where the influence of the non-femtoscopic correlations is small and the Bose-Einstein correlations are absent
Summary
Multiparticle production in high-energy collisions of particles and/or nuclei is a basic property of the strong interaction which is described by the Quantum Chromodynamics (QCD). Correlations of particles with small relative momenta ( known as femtoscopy or HBT intensity interferometry) [1] are used to probe space-time structure of systems created in high-energy collisions. These correlations arise from Bose-Einstein enhancement of identical-boson production at low relative momenta. In this paper we report on the results of two-kaon femtoscopic analysis performed for 600 GeV/c Σ−, π− and 540 GeV/c p interactions with carbon and copper nuclei
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